EVERYONE talks about getting out of Iraq and Afghanistan. But what about Germany and Japan?

The sequester — $85 billion this year in across-the-board budget cuts, about half of which will come from the Pentagon — gives Americans an opportunity to discuss a question we’ve put off too long: Why we are still fighting World War II?

Since 1947, when President Harry S. Truman set forth a policy to stop further Soviet expansion and “support free peoples” who were “resisting subjugation by armed minorities or by outside pressures,” America has acted as the world’s policeman....